5642: Difference between revisions
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The 5642 is a directly-heated high-voltage rectifier tube. | [[File:Tek 516 hvps1.jpg|thumb|300px|right|Three 5642s in a [[516]] HV supply]] | ||
The '''5642''' is a directly-heated high-voltage rectifier tube. It has three flexible lead connections and is intended to be soldered into the circuit. | |||
* filament volatage = 1. | * filament volatage = 1.25 V | ||
* filament current = | * filament current = 200 mA | ||
* peak inverse volrage = | * peak inverse volrage = 10 kV | ||
* peak plate current = | * peak plate current = 250 μA | ||
It is used in the CRT cathode and | It is used in the CRT cathode and post-deflection acceleration supplies in many Tektronix scopes. | ||
post-deflection acceleration supplies in many Tektronix scopes. | In typical CRT circuits, the filament/cathode leads of each 5642 have their own secondary winding | ||
In typical CRT circuits, | |||
the filament/cathode leads of each 5642 have their own secondary winding | |||
on the HV transformer. | on the HV transformer. | ||
[http://w140.com/5642.pdf 5642 datasheet] | ==Data Sheets== | ||
* [http://w140.com/5642.pdf RCA 5642 datasheet (PDF)] | |||
[[Category:Diode tubes]] | [[Category:Diode tubes]] | ||
Revision as of 13:04, 17 August 2017
The 5642 is a directly-heated high-voltage rectifier tube. It has three flexible lead connections and is intended to be soldered into the circuit.
- filament volatage = 1.25 V
- filament current = 200 mA
- peak inverse volrage = 10 kV
- peak plate current = 250 μA
It is used in the CRT cathode and post-deflection acceleration supplies in many Tektronix scopes. In typical CRT circuits, the filament/cathode leads of each 5642 have their own secondary winding on the HV transformer.